US11320698B2ActiveUtilityA1

Backlight structure, liquid crystal display panel and electronic device

Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTDPriority: Mar 28, 2019Filed: Sep 17, 2019Granted: May 3, 2022
Est. expiryMar 28, 2039(~12.7 yrs left)· nominal 20-yr term from priority
Inventors:Bingchuan Zhang
G02F 1/133603G02F 1/133608G02F 1/133615G02F 1/133628G02F 1/1336
55
PatentIndex Score
0
Cited by
20
References
17
Claims

Abstract

A backlight structure, a liquid crystal display (LCD) panel and an electronic device. The backlight structure includes a backboard, a plurality of bonding units spaced apart on the backboard, a plurality of light sources fixed to the backboard by the plurality of bonding units, wherein an area of a projection of a contact surface between the light sources and the bonding units on the backplane is less than or equal to an area of a projection of the light sources on the backboard.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A backlight structure, wherein the backlight structure comprises:
 a backboard; 
 a plurality of bonding units spaced apart on the backboard; 
 a plurality of light sources fixed to the backboard by the plurality of bonding units; 
 wherein an area of a projection of a contact surface between the light sources and the bonding units on the backboard is less than or equal to an area of a projection of the light sources on the backboard; and 
 a support portion vertical to the backboard is provided adjacent to the light sources. 
 
     
     
       2. The backlight structure according to  claim 1 , wherein the bonding units are consisted of a plurality of strip-shaped adhesive tapes;
 wherein the plurality of strip-shaped adhesive tapes are arranged in parallel, a length direction of the plurality of strip-shaped adhesive tapes is parallel to an edge of the backboard, and a length of the plurality of strip-shaped adhesive tapes is less than or equal to a length of the edge. 
 
     
     
       3. The backlight structure according to  claim 2 , wherein distances between any two adjacent strip-shaped adhesive tapes are equal, and the distance between any two adjacent strip-shaped adhesive tapes is greater than a width of the strip-shaped adhesive tape. 
     
     
       4. The backlight structure according to  claim 2 , wherein the light sources are consisted of a plurality of light strips disposed in parallel, each of the light strips comprising a plurality of independent point light sources. 
     
     
       5. The backlight structure according to  claim 4 , wherein the light strips have a same structure and size, and are disposed in one-to-one correspondence with the strip-shaped adhesive tapes,
 wherein a length of the light strips is less than or equal to a length of the strip-shaped adhesive tapes, and a minimum width of the point light sources of each of the light strips is greater than the width of the strip-shaped adhesive tape. 
 
     
     
       6. The backlight structure according to  claim 1 , wherein the bonding units are consisted of a plurality of independent bonding points, the light sources are consisted of a plurality of independent point light sources, the plurality of bonding points and the plurality of point light sources are in one-to-one correspondence. 
     
     
       7. The backlight structure according to  claim 6 , wherein an area of a projection of the bonding point corresponding to a point light source on the backboard is less than or equal to an area of a projection of the point light source on the backboard. 
     
     
       8. The backlight structure according to  claim 6 , wherein the point light sources are evenly distributed on the backboard;
 wherein a distance between geometric centers of any two adjacent point light sources is equal. 
 
     
     
       9. A liquid crystal display (LCD) panel comprising a backlight structure, wherein the backlight structure comprises:
 a backboard; 
 a plurality of bonding units spaced apart on the backboard; 
 a plurality of light sources fixed to the backboard by the plurality of bonding units; 
 wherein an area of a projection of a contact surface between the light sources and the bonding units on the backboard is less than or equal to an area of a projection of the light sources on the backboard; and 
 a support portion vertical to the backboard is provided adjacent to the light sources. 
 
     
     
       10. The LCD panel according to  claim 9 , wherein the bonding units are consisted of a plurality of strip-shaped adhesive tapes;
 wherein the plurality of strip-shaped adhesive tapes are arranged in parallel, a length direction of the plurality of strip-shaped adhesive tapes is parallel to an edge of the backboard, and a length of the plurality of strip-shaped adhesive tapes is less than or equal to a length of the edge. 
 
     
     
       11. The LCD panel according to  claim 10 , wherein distances between any two adjacent strip-shaped adhesive tapes are equal, and the distance between any two adjacent strip-shaped adhesive tapes is greater than a width of the strip-shaped adhesive tape. 
     
     
       12. The LCD panel according to  claim 10 , wherein the light sources are consisted of a plurality of light strips disposed in parallel, each of the light strips comprising a plurality of independent point light sources. 
     
     
       13. The LCD panel according to  claim 12 , wherein the light strips have a same structure and size, and are disposed in one-to-one correspondence with the strip-shaped adhesive tapes,
 wherein a length of the light strips is less than or equal to a length of the strip-shaped adhesive tapes, and a minimum width of the point light sources of each of the light strips is greater than the width of the strip-shaped adhesive tape. 
 
     
     
       14. The LCD panel according to  claim 9 , wherein the bonding units are consisted of a plurality of independent bonding points, the light sources are consisted of a plurality of independent point light sources, the plurality of bonding points and the plurality of point light sources are in one-to-one correspondence. 
     
     
       15. The LCD panel according to  claim 14 , wherein an area of a projection of the bonding point corresponding to a point light source on the backboard is less than or equal to an area of a projection of the point light source on the backboard. 
     
     
       16. The LCD panel according to  claim 14 , wherein the point light sources are evenly distributed on the backboard;
 wherein a distance between geometric centers of any two adjacent point light sources is equal. 
 
     
     
       17. An electronic device comprising a liquid crystal display (LCD) panel, wherein the LCD panel comprises a backlight structure, and the backlight structure comprises:
 a backboard; 
 a plurality of bonding units spaced apart on the backboard; 
 a plurality of light sources fixed to the backboard by the plurality of bonding units; 
 wherein an area of a projection of a contact surface between the light sources and the bonding units on the backboard is less than or equal to an area of a projection of the light sources on the backboard; and 
 a support portion vertical to the backboard is provided adjacent to the light sources.

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